So I have an upcoming reservation with tickets, dinning, etc. We added a room only reservation on the first night of the trip arriving late because flights were cheaper. Can I decline the magic bands for the room only reservation and then link them to the magic bands for the main reservation? I think the answer is yes, but wanted to double check. Does anyone know if I can do this before my magic bands arrive or do I have to do it using the code on the back of the band?